Lubricant dispensing device



Feb. 16, 1932. l H. J. STORK 1,844,989

LUBRICANT DISPENSING DEVICE Filed July 21*l i928 2 sheets-sheet 1 W 23 i il 33;/ 5/2 INVENTOR.

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Feb. 16, 1932. H. J. sToRK 1,844,989

' LUBRICANT DISPENSING' DEVICE Filed July 21, 1928 2 sheets-sheet 2 A da I N VEN TOR.

Patented Feb. 16, 1932 UNITED STATES HENRY J. STORK, OF ARLINGTON, NEBRASKA LUBRICANT DISPENSING DEVICE Application led J'uly 21, 1928. Serial` No.,294,455.

The invention relates to a lubricant `dispensing device and has for its object to provide an improved construction of this character upon which I have filed an application for Letters Patent Ser. No. 236,457, filed November 29, 1927, now Patent No. 1,733,635

said improved construction comprising automatic means of manipulating the three way valve when one of the cylinders is filled so as to cause the lubricant to iiow into the discharged cylinder and be forced from the filled cylinder through a discharge pipe leading therefrom. n

A further object is to provide such a device particularly adapted for use in garages and provided with a plurality of cylinders having pistons therein, which pistons are provided with rack bars in mesh with a rotatable gear so that one piston will be forced downwardly and the other piston simultaneously moved upwardly, whereby, as lubricant is discharged from one cylinder it will be forced through the other cylinder for a subsequent dispensing operation.

A further object is to provide a supply pipe leading from a lubricant supply tank wherein it is retained under atmospheric pressure of suflicient intensity to cause the said lubricant to flow therefrom through a discharge V pipe having branches through which it may be directed through either of its dispensing cylinders in such a manner as to produce simultaneous reciprocal movements in opposite directions of the pistons within said cylinders and be forced on through a discharge pipe leading therefrom. Y

A further object is to form the cylinders from transparent material whereby the liquid level therein may be observed, and its volume ascertained by means of a graduated scale located upon the cylinders.

With the above and other objects in view the invention resides in the combination and arrangement of parts as herein after set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit yof the invention.

In the drawings: y y

Figure l is a front elevation shown in section through the cylinders. f

Figure 2 is a side elevation of Figure 1.

Figure 3 is a front elevation of the contain- -55 ing tank with the dispensing device attached thereto. p

Figure 4 is a transverse sectional view through the valve and casing on line 4 4 of Figure 6.

Figure 5 is a transverse sectional view through the valve andcasing on line 5-5 of Figure 6.

Figure 6 is an upper side view of the valve core as shown in Figures 4 and 5. `65

v Figure 7 is a sectional plan view through the cylinders on line 7-7of Figure 3.

Figure 8 is a sectional view through the band wheel, disk and hollow shaft shown in Figure 2.

In the drawings in Figure 1, the numerals v1 and 2 designate respectively the right and left hand members of a pair kof lubricant dispensing cylinders. These are clamped between horizontal supportingplates 3 and 75 4 by a multiplicity of bolts 5 extending through the said plates and firmly secured by means of nuts 6. The lower plates are provided with circular openings 7 coinciding with the bore of the cylinders so as to S0 permit the insertion or removal of pistons therein without displacing the cylinders; the upper plate 4 is formed integral with a valve `casing 8 comprising port conduits 9, 10 and 11,'the latter carrying an intake pipe 12 which 85 supports it and is connected with a tank 13. The said tank 13, containing a supply of lubricant to be dispensed, is provided with an air pump 14 attached to the tank and provided with an air discharge pipe 15 lead- 90 ing into the top thereof, affording means whereby air may be forced therein so as to provide sufficient pressure to force the lubricant through the device and operate the same; this tank pressure is registered by means of a pressure gage 16 attached to the said tank.

` The pipe 12 is attached to the lower end of the tank 13 andleads therefrom through the valve casing 8 and its port 17 into the valve core port 18, and when the position of the valve core 19 is such that its said port 18 registers with the casing port- 17 and the cyl-4 inder port 20, extending through the valve casing 8, the lubricant will be forced into the cylinder l above the piston 21, thus forcing the said piston downwardly causing the piston rod 22 with its rack teeth in mesh with those of a gear 23, to revolve said gear 23 during the descent of the said piston 21. During this period the piston 24 provided in like manner with a piston rod 25 having also rack teeth in mesh with those of said gear 23, will obviously be forced upward causing the contents of the cylinder 2, which had been received during its downward stroke, to be forced upward therefrom through the casing port 26, the valve core port 27 and the discharge pipe 28. This move will continue until the pistons have reached the limit of their ull stroke kand the piston 24 has completed its upward stroke; then to render available a reverse stroke, which is necessary to permit a continuous flow of lubricant, the discharge and intake ports of the opposite pistons must be reversed. This is done by an automatic )rocess whereby the valve core 19 is rotated 1n a clockwise direction 90 so as to bring its ports 18 and 27 respectively into registration with the opposite cylinder ports 29 and 30. t is obvious this automatic process must be completed d uring the interval of reversing, while the pistons are at rest, and should be as nearly instantaneous as possible.

To procure this effect the gear 23 is rigidly mounted upon the rear extremity of a hol'- loW shaft 31 rotatably carried over a stud 32 ri idly attached to and protruding forward y, from a bracket 33. The bracket 1s centrally anchored yupon the intake pipe 12 and comprises oppositely extending arms terminating at their extremities in rack bar guides 34.i Upon the hollow shaft 31 is mounted near its outer extremity a disc 35, carrying pins 36 protruding from its outer face at spaced distances thereon and projecting sufi'iciently therefrom to extend through an annular slot in a tree running band wheel 37 so that one of the pins 36, as the said disc revolves in a cloc rwise direction will be brought into engagement with a pin 38 eX- tending inwardly from an arm 39 pivoted rotatably upon the outer end of the stud 32, and lbe carried therewith against the force of a contractable spring 40 rigidly secured at its upper end to a bracket 41 and at its lower end to the outer extremity of said arm, at whichtime the armwill have attained a downward position and be sufficiently advanced to be carried over the dead center at a point 35a stretching the spring 40. At this point the spring 40 will have accumulated a store of energy suii'icient to draw the arm in furtherrotation for approximately without load,

untilit assumes a position indicated by line L and then engages a pin 42 protruding from the face of the wheel 37 carrying the said wheel 37 with sufficient force to instantaneously reverse the direction of the pistons throughout a 900 movement of the said valve until the arm 39 assumes the posit-ion indicated by line I). It will be noted that this valve movement procured through its con nection with the wheel, and a similar wheel 43 carrying the valve core 19 by means of a cable 44 overreaching the said wheel 43 se cured to its upper side and to the underside of the wheel 37 so as to prevent slippage and procure uniform movement of the core and wheel 37.

Referring particularly to Figure 1, it will be seen that the pins 42 are located upon the wheel 37 in diametrically opposite positions and as shown in Figure 1 the piston 21 has completed its upward stroke; the arm 39 having at this stage instantaneously been carried by the spring 40 from its position at 35a to the location shown, and has by means of the pin 42 carried with it the wheel 37 from a position adjacent the line o to a position adjacent the line (l, thereby reversing the direction of the gear and intermediate disc by imparting a ninety degree rotation to the pulley 37 and also through the connections therewith the valve core 19.

Reversal having taken place the arm 39 will of course be moved in an opposite direction, this being done by means of the disc 35 in cooperation with the ins 36 carried adjustably by the disc and t 1e inwardly extending lugs carried by the pivoted arm 39. The pin 38 carried by the arm '39 protrudes inwardly through the annular slot 45 into the path of the adjacent adjustable pin 36; therefore.l it will be seen that when the disc 35 rotates the adjustable pin 36 will engage the lug 38 and move the arm 39 downwardly, tensioning the spring 4() until the arm 39 assumes the position at 35a passing .over dead center and then the arm is forced into engagement with the adjacent lug 42 b the contractible force of the spring 40; an this contractible force imparts a ninety degree rotation to pulley 37 from positions a to b, thereby completing the reverse operation. The above operation continues. Pipe 12 is preferably provided with a conventional form of valve (not shown) whereby the device may be controlled as to starting and stopping.

It will be observed that the pins 36 Which are mounted through an annular slot 45, eX- tend movably through the sides of the disk 35 and secured by means of lock nuts 4G in such manner as to permit variable `adjustments to regulate such length of the piston stroke as may be desired.

The transparent cylinders 1 and 2 are provided each with a scale 47 adapted to gage the CTI extent of the piston movement, thus indicating the quantity of the fluid dispensed.

While the invent-ion is primarily intended as a lubricant dispensing device l desire to have it understood that it may be used in dispensing other fluid and the cylinder may be composed of opaque as well as transparent material.

The invention having been set forth what is claim-ed as new and useful is l. A lubricant dispensing device comprising a pair of lubricant gaging cylinders, a valve adj acentthe cylinders, a lubricant container, a pipe leading therefrom to said valve, means for charging said lubricant container with compressed air, pistons slidably mounted in said cylinders, piston rods carried by said pistons, racks carried by said rods, bracket supported guides engaging said racks, a gear between said racks and in mesh therewith, a hollow shaft carrying said gear, a stud engaging said hollow shaft, a disc carried by said hollow shaft, a band wheel rotatably mounted on said stud, spaced pins adjustably secured in an arcuate slot in said disc and extending through an opening in the side of the band wheel, an arm rotatably pivoted upon the outer end of saidstud adapted to be engaged by said pins, a contractible spring having one of its ends anchored to a stationary portion of the device, the other end of said spring being connected to theouter end of said arm, spaced pins protruding from the band wheel subject to engagement by the arm, a band wheel mounted upon the core of said valve, a cable carried by said band wheels and means for supporting said device in any available location.

2. A lubricant dispensing device comprising adjacent cylinders, a valve casing above the cylinders, a rotary plug valve in said casing, means for supplying lubricant to the valve casing, lubricant supply pipes connecting the valve casing and the cylinders and through which lubricant is alternately discharged upon movement of the valve ninety degrees, lubricant discharge pipes connecting the casing and the cylinders and through which lubricant is alternately discharged from the cylinders, a port in the plug valveand through which lubricant from the discharge pipe is discharged upon ninety degrees rotation of the plug valve, pistons slidably mounted in the cylinders, means for alternately raising and lowering the pistons and means controlled by the last named means for imparting ninety degree rotations to the plug valve.

3. The combination with a liquid dispensing device comprising adjacent cylinders, pistons slidably mounted in said cylinders, piston rods carried by said pistons, a gear between said rods, racks carried by the rods and meshing with opposite sides of the gear,

a rotatable plug valve controlling the flow into and from the cylinders alternately and movable ninety degrees in opposite directions, of means for rotating said valve, said means comprising a disc carried by the gear, a pulley wheel rotatably mounted independent of the disc, pins carried by the disc and extending through an arcuate slot in the pulley wheel, a pivoted lever, a lug carried by the lever in the path of the pins, one of said pins cooperating with the lever lug whereby upon rotation of the disc the lever will be carried downwardly past a dead center, diametrical lugs carried by the pulley Wheel in the path of the lever and driving connections between the pulley wheel and the rotatable valve.

4. A valve actuating mechanism for lubricant dispensing devices having a rotatable valve controlling the liow of lubricant to cylinders and from cylinders alternately, pistons slidably mounted in said cylinders, piston rods ycarried by said pistons, a gear between the piston rods, racks carried by the piston rods and meshing with the gear, said mechanism comprising a shaft on which the gear is rotatably mounted, a disc carried by said gear, pins carried by said disc, a pulley wheel having an arcuate slot through which the pins extend, lugs carried by the outer face of the pulley wheel at substantial dia metrical positions, an arm pivoted on the shaft and engaging one of said lugs, a contractible spring connected to the arm and anchored to the device, said gear when rotated imparting a downward movement on the arm past a dead center, said contractible spring cooperating with the arm for forcing the same into engagement with the other pulley lug and imparting a ninety degree rotation to the pulley wheel, and means for imparting a ninety degree movement to the valve from the pulley wheel.

In testimony whereof I hereunto affix my signature.

HENRY J. STORK. 

